I created a supplier database and various master bills of quantities for a construction company for which I was paid without any problems. I am a young quantity surveyor running my own business. The agreement was that I would be paid for each completed task. My final invoice of about 18000 rand has hit a roadblock as the company now claim they want to ‘ test it “ before payment. It has been 6 months, and I suspect the general manager is behind this non payment. I had a fight with him on a few occasions. I need the money urgently. What do I do?